The Review of Metaphysics is a journal I first encountered as an undergraduate.
The CURRENT PERIODICAL ARTICLES section offers abstracts of current articles from a large number of philosophical journals. Far more than I could acquire or review personally.
This is where I discovered the Music, Essential Metaphor and, And Private Language paper.
If you are interested in the theory side of knowledge/topic maps and/or something harder than representing spreadsheets as topic maps, this is a good source of starting points.